Broken

NameColors.cs

using System;
using System.Drawing;

class NameColors
{
    private static Color[] BasePalette = {
        Color.FromArgb(107, 50, 124),
        Color.FromArgb(218, 133, 65),
        Color.FromArgb(245, 205, 48),
        Color.FromArgb(232, 186, 200),
        Color.FromArgb(215, 197, 154)
    };

    private static Color[] ModernPalette = {
        Color.FromArgb(253, 41, 67),
        Color.FromArgb(1, 162, 255),
        Color.FromArgb(2, 184, 87)
    };

    private static Color[] OldPalette = {
        Color.FromArgb(196, 40, 28),
        Color.FromArgb(13, 105, 172),
        Color.FromArgb(39, 70, 45)
    };

    private static int Modulus(int a, int b)
    {
        return (int)(a - Math.Floor((double)(a / b)) * b);
    }

    public static Color Compute(string name, bool modernColors = true)
    {
        Color[] ChosenPalette = (modernColors ? ModernPalette : OldPalette);
        Color[] Palette = new Color[BasePalette.Length + ChosenPalette.Length];
        BasePalette.CopyTo(Palette, 0);
        ChosenPalette.CopyTo(Palette, BasePalette.Length);

        int val = 0;
        
        for (int i = 0; i < name.Length; i++)
        {
            int cv = (int)name[i];
            int ri = name.Length - i;

            if (Modulus(name.Length, 2) == 1)
            {
                ri--;
            }

            if (Modulus(ri, 4) >= 2)
            {
                cv = -cv;
            }

            val += cv;
        }

        return Palette[Modulus(val, Palette.Length)];
    }
}